Double-roller cotton-gin.



L. L. FOSS.

DOUBLE ROLLER COTTON GIN.

APPLICATION FILED APR. [5. me.

1 ,205,881 Patented Nov. 21, 1916.

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L. L. FOSS.

DOUBLE ROLLER COTTON GIN.

APPLICATION FILED APR. 15. 1916.

1,205,881. Patented Nov. 21, 1916.

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DOUBLE ROLLER COTTON GIN.

APPLICATION FILED APR. 15. me.

Patented Nov. 21, 1916.

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L. L. FOSS.

DOUBLE ROLLER COTTON GIN.

APPLICATION mu) APR. I5. 1916.

1,205,881 Patented Nbv. 21, 1916.

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LELAND L. FOSS, 0F VIDALIA, GEORGIA, ASSIGNOR 0F ONE-HALF TO MOSES LEADER,

0F VIDALIA, GEORGIA.

DOUBLE-ROLLER COTTON -GI1\T.

Specification of Letters Patent.

Patented Nov. 21, 1916.

Application filed April 15, 1916. Serial No. 91,329.

To all whom it may concern:

Be it known that I, LELAND L. Foss, a citizen of the United States, resident of Vidalia,in the county of Toombs-and State of Georgia, have made a certain new and useful Invention in Double-Roller Cotton- Gins; and I declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it appertains to make and use the invention, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 is an end view of the invention. Fig. 2 is a plan view of the same partly broken away. Fig. 3 is a section on the line 33 Fig. 2. Fig. 4t is a detail perspective view, partly broken away, of the feeder. Fig. 5 is a detail cross sectional view of the roller and breast, showing the blade adjustment. Fig. 6 is a detail end view of a hacker frame, showing a modification of the operating means therefor. Fig. 7 is a similar view, showing a second modification. Fig. 8 is a similar view, showing a third modification.

The invention has relation to cotton gins ofthe double roller type, designed for operation upon the long fiber or sea island cotton, having for anobject to increase the capacity of the machine.

Other objects and advantages will hereinafter appear.

The invention consists in the novel construction and combinations of parts, as hereinafter set forth.

In the accompanying drawings illustrating the invention, the numeral 2 designates the main frame of the machine, hav-- ing end uprights 3; 4t designates the ginning rollers, one at each side of the machine; 5, the breasts located respectively above the rollers and carrying the ginning blades 6, cooperating with the rollers and with the hacker blades hereinafter referred to; 7 the shed boards inclinedrespectively toward the rollers to feed the cotton thereto, said shed boards being carried by castings 8, bolted to the end uprights at 9, for vertical adjustment, the bolts engaging verticalslots of tho castings; 8 the seed griddles located upon horizontal arms'of said castings and projecting toward the rollers, said griddles substantially bridging the space between shed boards and rollers, an interval 9 being left between the free end of each griddle and the roller for passage of the hacker blades 10, said blades forming the side bars of vibratory hacker frames 12, made each in one casting of which said blades form an integral part, and 13 are the reciprocatory feeders mounted and sliding upon the grid dles toward and away from the rollers.

The power or crank shaft is shown at let, an endless belt 15 engaging pulley 14 thereof and passing upwardly and obliquely around the inner side of the driving pulley 16 for one ginning roller, thence engaging pulley 17, mounted in an oblique slot 18 of a support 18 for tension adjustment of the belt, said belt next passing downwardly and engaging the driving pulley 16 for the other ginning roller, and thence to the pulley14t A driving belt 19 for the feeder shaft engages a pulley 20 upon the shaft of one of the ginning rollers, passing thence to a pulley 21 upon the feeder shaft, a device 22 for adjusting the tension being provided for thisbelt.

The breasts pass at their ends through perforations or slots of the end frames and have outer clownturned lugs 23, being suspended from vertical bolts 22, axially adjustable to vertically adjust the breasts, within horizontal slots of flanges 25, of the end uprights, nuts 26, upon said bolts providing for this adjustment. The breasts are also horizontally adjustable through adjustment of horizontal bolts 27, 27, located one above the other and at their inner ends pivotally engaging the stems of upper and lower bolts 28, 28, carried by the breasts, said bolts at their outer ends engaging vertical slots 28 of flanges 30 of the end uprights, the adjustment of said horizontal bolts being effected by means of nuts 29, thereon, said nuts bearing against said flanges.

Upon suitable differential adjustment of the horizontal bolts, together with adjustment of the vertical bolts 22, the breasts may be obliquely adjusted to one side or the other in an arcuate path to give an oblique or leaning adjustment to the ginning blades with respect to the rollers, the blades moving from their tangential lines of contact with said rollers as centers. And upon suitable adjustment of the horizontal and vertical bolts the breasts may be adjusted ment of the nuts 41. in this way, the ten- 1 sion of the spring of each. breast may be adjusted independently and made greater or less for one breast than for the other, as is required in some cases.

The end journals of the ginning rollers are mounted upon arms 31, having at their inner ends slot and bolt connection with the end uprights at 32, said arms at their outer ends having threaded extensions 33, n g n sl ts o fl e 47 h up igh s, nuts 35 upon said extensions and bearing against said flanges fixing the adjustment. The caps 36 of thebearings fortheroller journa ls and the rollers themselveslare suspended from vertical bolts 37, pivotally engaging said caps at 38, and at their upper ends enslots of the flanges 25 of the end uprights, nuts 39, upon said bolts and hearing against said flanges fixing the ad ustment.

The shed boards 7 are slotted throughout their length at 7 to provide for passage of the seed therethrough, and the feeders 13 are similarly slotted at 13", said feeders being made higher or of greater thickness than usualto effectively feed or push the cotton toward the ginning rollers.

Castings 43 are secured to the end uprights by bolts 44, the hacker frames hav ing end journals -12 engaging bearing seats in the tops of blocks 45 upon said castings. Thesecastings are provided with said blocks the ends of the castings and intermediately thereof as required for the journal bearings of the vibratory hacker frames,

have as a part thereof a lower longitudinal member 46, inclined in opposite dii nt s th s e It is found in practice that the rapid ac- J tion required ofthe vibratory hacker frames will unduly heat the journal bearings of the power or crank shaft, and will unduly heat the shaft itself, as also the wooden pitmen or crank legs, and it is designed to reduce the speed of this crank shaft and at the same time to obtain a more rapid action of the hacker frames, this being accomplished by special mechanism described as follows: 47 and 48 are toggle links having a pivotal connection at 48, the upper link being pivota-lly connected to the hacker frame at 49, and the lower link being pivoted intermediately of its length at 50, va connecting rod or crank leg 51 being at one end pivotally mounted upon the crank 52 of the shaft and at its other end having a pivotal connection 58 with the lower arm of the toggle link 48. In the operation of this mechanism, for one revolution of the crank shaft, the toggle links will be bowed first to one side to vibrate the hacker frame and its blades upwardly and downwardly, and then bowed to the opposite side to vibrate the hacker frame and blades again upwardly and downwardly, four strokes of the blades being accomplished in this way for one revolution of the shaft, to two strokes ordinarily accomplished, the ratio being two to one.

A modification of the mechanism for vibrating the hackers shown in Fig. 6 of the drawings, wherein 55 and 56 represent toggle links, having a pivotal connection at 57, the upper link being pivotally connected with the hacker frame at 58, and the lower ink b n of ell ran l v r Qr n, its lo arm having connection with the crank of the power shaft by means of rod 60.

A further modification is shown in Fig. 8 of the drawings, wherein a secondpair .of toggle links 61 and 62 is provided, the up,- per link of the lower pair having a pivotal connection with the lower arm of the hell crank lever 56 at 6 3 the two links being connected together by pivot .64, and a connecting rod or crank leg 65 to the crank ,Of the power shaft having connection with the pivot 64 of the lower toggles. V e

A further modification is shown in Fig. 7 wherein the toggle links 66 and 67 are pivotally connected at 68, the upper link being quite long compared to the length .of the lower link, and both links being straight throughout their length, the connecting rod 69 to the crank of the power shaft having connection with the pivot 68, of the links, and the shaft being in about the same horizontal plane as said pivot.

In the second modification having the second pair of toggle links, the hacker will be vibrated upwardly and downwardly or in two directions four times,= giving eight strokes for each revolution of the crank of the shaft.

The object of a cotton gin being to free the cotton of seed, it is highly desirable to separate or discharge as much of the seed as possible before the cotton is fed to the ginning rollers ginning blades and hackers, and it is for this reason that the shed boards in the throat of the hopper are'slotted and the feeders are slotted, the slotted shed boards and the slotted feeders cooperating with the slotted griddles and reducing the load or strain upon the ginning rollers and hackers, also increasing the ginning capacity of the machine, such capacity being further increased by rapid elimination of the seed in the hopper, said seed being in the way of cotton fed to the machine.

In this machine, to obtain the same results from vibration of the hackers as in the ordinary machine of this type, the speed of rotation of the crank shaft can be reduced one half, with consequent beneficial results as stated, and in the case of the modification having two pairs of toggle links, the speed of rotation of the crank shaft can be reduced three fourths, the shaft running one fourth as fast.

I claim:

1. In a cotton gin, the combination with a ginning roller, of a breast, a ginning blade carried by said breast and adapted to contact tangentially with said roller, and means for adjusting said breast bodily and arouately to adjust the blade with relation to the roller, from its tangential contacting line with said roller as a center.

2. In a cotton gin, end frames having vertical and horizontal slotted flanges, a ginning roller, a breast provided with overlying end extensions and vertical extensions engaging the slots of said horizontal flanges, nuts upon said vertical bolt extensions engaging said horizontal flanges, a ginning blade carried by said breast and adapted to contact tangentially with said roller, upper and lower horizontal bolts having at their inner ends pivotal engagement with said end extensions and at their outer ends engagement with the slots of said vertical flanges and nuts bearing against the flanges, and coiled springs surrounding said vertical bolts and hearing at their upper ends against said horizontal flanges and at their lower ends against said breast.

3. In a double roller cotton gin, breasts carrying ginning blades, vibratory hackers provided with blades cooperating with the ginning blades, oppositely inclined shed boards provided throughout the length thereof with transverse slots extending from top to bottom of the said boards, horizontal slotted griddles, reciprocatory feeders upon said griddles having each a horizontal body and at its outer end an inclined end face corresponding in inclination approximately to that of the shed boards, the body and face of said feeder being provided throughout their lengths with transverse slots.

l. In a cotton gin, the combination'with a roller, a ginning blade cooperating there with, a hacker blade cooperating with said ginning blade, a driving shaft, and means for operating said hacker blade past the working edge of the ginning blade and reversely to normal position a plurality of times upon each revolution of the driving shaft.

In a cotton gin, the combination with a roller, a ginning blade cooperating therewith, a hacker blade cooperating with said ginning blade, at driving shaft, and means for operating said hacker blade past the working edge of the ginning blade and reversely to normal position a plurality of times for each revolution of the driving shaft, including toggle levers bowed in one direction for the movement of said hacker blades past the ginning blades and back to normal position, and bowed in the opposite direction for a repetition of this movement.

6. In a double roller cotton gin, vibratory hackers, and means for vibrating said hackers, consisting of a power crank shaft, a pair of toggle links the lower of which is of bell-crank lever form and the upper of which has connection with said hacker, and connecting means from the crank of said shaft to the lower arm of said lower link, said toggle links being bowed in one direction and back to normal position to accomplish an upward stroke and a downward stroke of said hacker, and bowed in the opposite direction for a repetition of said strokes.

In testimony whereof I afliX my signature,

in presence of two witnesses. L. L. FOSS.

Witnesses STUART HILDER,

VM. H. SPIGNUL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). 0. 

